240 lines
8.0 KiB
JavaScript
240 lines
8.0 KiB
JavaScript
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;(function ($, window, document, undefined) {
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'use strict';
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Foundation.libs.slider = {
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name : 'slider',
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version : '5.4.7',
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settings: {
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start: 0,
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end: 100,
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step: 1,
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initial: null,
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display_selector: '',
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vertical: false,
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on_change: function(){}
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},
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cache : {},
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init : function (scope, method, options) {
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Foundation.inherit(this,'throttle');
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this.bindings(method, options);
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this.reflow();
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},
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events : function() {
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var self = this;
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$(this.scope)
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.off('.slider')
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.on('mousedown.fndtn.slider touchstart.fndtn.slider pointerdown.fndtn.slider',
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'[' + self.attr_name() + ']:not(.disabled, [disabled]) .range-slider-handle', function(e) {
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if (!self.cache.active) {
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e.preventDefault();
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self.set_active_slider($(e.target));
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}
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})
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.on('mousemove.fndtn.slider touchmove.fndtn.slider pointermove.fndtn.slider', function(e) {
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if (!!self.cache.active) {
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e.preventDefault();
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if ($.data(self.cache.active[0], 'settings').vertical) {
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var scroll_offset = 0;
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if (!e.pageY) {
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scroll_offset = window.scrollY;
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}
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self.calculate_position(self.cache.active, (e.pageY ||
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e.originalEvent.clientY ||
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e.originalEvent.touches[0].clientY ||
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e.currentPoint.y)
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+ scroll_offset);
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} else {
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self.calculate_position(self.cache.active, e.pageX ||
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e.originalEvent.clientX ||
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e.originalEvent.touches[0].clientX ||
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e.currentPoint.x);
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}
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}
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})
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.on('mouseup.fndtn.slider touchend.fndtn.slider pointerup.fndtn.slider', function(e) {
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self.remove_active_slider();
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})
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.on('change.fndtn.slider', function(e) {
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self.settings.on_change();
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});
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self.S(window)
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.on('resize.fndtn.slider', self.throttle(function(e) {
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self.reflow();
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}, 300));
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},
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set_active_slider : function($handle) {
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this.cache.active = $handle;
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},
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remove_active_slider : function() {
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this.cache.active = null;
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},
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calculate_position : function($handle, cursor_x) {
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var self = this,
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settings = $.data($handle[0], 'settings'),
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handle_l = $.data($handle[0], 'handle_l'),
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handle_o = $.data($handle[0], 'handle_o'),
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bar_l = $.data($handle[0], 'bar_l'),
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bar_o = $.data($handle[0], 'bar_o');
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requestAnimationFrame(function(){
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var pct;
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if (Foundation.rtl && !settings.vertical) {
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pct = self.limit_to(((bar_o+bar_l-cursor_x)/bar_l),0,1);
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} else {
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pct = self.limit_to(((cursor_x-bar_o)/bar_l),0,1);
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}
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pct = settings.vertical ? 1-pct : pct;
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var norm = self.normalized_value(pct, settings.start, settings.end, settings.step);
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self.set_ui($handle, norm);
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});
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},
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set_ui : function($handle, value) {
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var settings = $.data($handle[0], 'settings'),
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handle_l = $.data($handle[0], 'handle_l'),
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bar_l = $.data($handle[0], 'bar_l'),
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norm_pct = this.normalized_percentage(value, settings.start, settings.end),
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handle_offset = norm_pct*(bar_l-handle_l)-1,
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progress_bar_length = norm_pct*100;
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if (Foundation.rtl && !settings.vertical) {
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handle_offset = -handle_offset;
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}
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handle_offset = settings.vertical ? -handle_offset + bar_l - handle_l + 1 : handle_offset;
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this.set_translate($handle, handle_offset, settings.vertical);
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if (settings.vertical) {
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$handle.siblings('.range-slider-active-segment').css('height', progress_bar_length + '%');
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} else {
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$handle.siblings('.range-slider-active-segment').css('width', progress_bar_length + '%');
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}
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$handle.parent().attr(this.attr_name(), value).trigger('change').trigger('change.fndtn.slider');
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$handle.parent().children('input[type=hidden]').val(value);
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if (!$handle[0].hasAttribute('aria-valuemin')) {
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$handle.attr({
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'aria-valuemin': settings.start,
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'aria-valuemax': settings.end,
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});
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}
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$handle.attr('aria-valuenow', value);
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if (settings.display_selector != '') {
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$(settings.display_selector).each(function(){
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if (this.hasOwnProperty('value')) {
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$(this).val(value);
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} else {
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$(this).text(value);
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}
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});
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}
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},
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normalized_percentage : function(val, start, end) {
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return Math.min(1, (val - start)/(end - start));
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},
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normalized_value : function(val, start, end, step) {
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var range = end - start,
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point = val*range,
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mod = (point-(point%step)) / step,
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rem = point % step,
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round = ( rem >= step*0.5 ? step : 0);
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return (mod*step + round) + start;
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},
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set_translate : function(ele, offset, vertical) {
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if (vertical) {
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$(ele)
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.css('-webkit-transform', 'translateY('+offset+'px)')
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.css('-moz-transform', 'translateY('+offset+'px)')
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.css('-ms-transform', 'translateY('+offset+'px)')
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.css('-o-transform', 'translateY('+offset+'px)')
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.css('transform', 'translateY('+offset+'px)');
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} else {
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$(ele)
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.css('-webkit-transform', 'translateX('+offset+'px)')
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.css('-moz-transform', 'translateX('+offset+'px)')
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.css('-ms-transform', 'translateX('+offset+'px)')
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.css('-o-transform', 'translateX('+offset+'px)')
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.css('transform', 'translateX('+offset+'px)');
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}
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},
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limit_to : function(val, min, max) {
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return Math.min(Math.max(val, min), max);
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},
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initialize_settings : function(handle) {
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var settings = $.extend({}, this.settings, this.data_options($(handle).parent()));
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if (settings.vertical) {
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$.data(handle, 'bar_o', $(handle).parent().offset().top);
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$.data(handle, 'bar_l', $(handle).parent().outerHeight());
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$.data(handle, 'handle_o', $(handle).offset().top);
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$.data(handle, 'handle_l', $(handle).outerHeight());
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} else {
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$.data(handle, 'bar_o', $(handle).parent().offset().left);
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$.data(handle, 'bar_l', $(handle).parent().outerWidth());
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$.data(handle, 'handle_o', $(handle).offset().left);
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$.data(handle, 'handle_l', $(handle).outerWidth());
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}
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$.data(handle, 'bar', $(handle).parent());
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$.data(handle, 'settings', settings);
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},
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set_initial_position : function($ele) {
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var settings = $.data($ele.children('.range-slider-handle')[0], 'settings'),
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initial = (!!settings.initial ? settings.initial : Math.floor((settings.end-settings.start)*0.5/settings.step)*settings.step+settings.start),
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$handle = $ele.children('.range-slider-handle');
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this.set_ui($handle, initial);
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},
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set_value : function(value) {
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var self = this;
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$('[' + self.attr_name() + ']', this.scope).each(function(){
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$(this).attr(self.attr_name(), value);
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});
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if (!!$(this.scope).attr(self.attr_name())) {
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$(this.scope).attr(self.attr_name(), value);
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}
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self.reflow();
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},
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reflow : function() {
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var self = this;
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self.S('[' + this.attr_name() + ']').each(function() {
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var handle = $(this).children('.range-slider-handle')[0],
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val = $(this).attr(self.attr_name());
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self.initialize_settings(handle);
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if (val) {
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self.set_ui($(handle), parseFloat(val));
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} else {
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self.set_initial_position($(this));
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}
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});
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}
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};
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}(jQuery, window, window.document));
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